ipl_block_get_ascii_vmparm
rc = ipl_block_get_ascii_vmparm(
extern size_t ipl_block_get_ascii_vmparm(char *dest, size_t size,
ipl_block_get_ascii_vmparm(parm, sizeof(parm), &ipl_block);
ipl_block_get_ascii_vmparm(vmparm, sizeof(vmparm), ipb);